Pickling and drying would be two good options, and hot sauce is another.
I often make small batches of hot-sauce, rather than full out preserving, with fresh chilis, vinegar, garlic and seasonings. You can user the peppers straight, or roast or grill them first, then dice, simmer with vinegar and the seasonings, and puree finely.
Garlic/lime/vodka was a really nice combination - add the vodka at the end, as it's cooling.